Have Gun — Will Travel is an American Western television series that aired on CBS from 1957 through 1963. It was rated either number three or number four in the Nielsen ratings during each year of its first four seasons.
The show followed the adventures of Paladin, a gentleman gunfighter (played by Richard Boone on television), who preferred to settle problems without violence, yet, when forced to fight, excelled. The knight symbol is in reference to his name — possibly a nickname or working name — and his occupation as a champion-for-hire. The theme song of the series refers to him as "a knight without armor." [wikipedia]